Since holes need to be made on the ceiling to place the bottle in, would rainwater not seep through these holes? I mean no matter how well the bottles fit the holes, surely there must have been some space around these bottles to let water in? When the lady says that it does not leak, does she mean the bottle or the ceiling? Or both?
I'm very excited about this innovation, but want to know if it can work on an insulated (8" thick) roof, or only on a thin metal roof. Does the light refraction only work when most of the bottle is exposed?
I really wish the title called the design a light pipe, instead of a bulb.
Putting 2 camera container fulls of bleach into a 2 litre bottle of water and exposing it to sunlight doesn't make it glow like a glow stick. Its reflects the sunlight, so it only works when the sun is out.
It doesn't replace any bulbs, it just eliminates their usage on sunny days where the roof is thin enough to install one of these.
Also, isn't that light meter measuring "lumins", not watts?
Those bottles obviously do not work in the dark, during the night for example. In fact they do not produce light al all.
Light comes from the sun and gets into the building through holes in the roof.
Plastic bottles are sealed into position to keep rain out.
Filling them with water has the effect of diffracting light in all directions and salt or ammonia is added to block algae growth. I would not recomment something like that for a temperate climate.
@AnaLimaLuiza I hope if I ever "search.. other countries" their citizens won't make baseless generalizations about me based on where I was born and raised.
@TubeNerd00 Money does motivate people to invent, but only a fool would argue it is the "only" motivation.
I'm impressed - and I design solar powered lighting:-). Mine charges by day and provides light at night, but this nicely complements what I do. (Search BOGO light SunNight Solar) I wonder how my wife's going to react to the softdrink bottles in the ceiling? :-)
@ki6eki No, light is most used during the day when people are awake. SUPPLEMENTAL light is most used during the night, for those few hours we're not asleep yet. But these skylights solve the problem of folks who are awake during the day but still suffering from darkness. It doesn't pretend to replace the need for other lights at night.
I wonder what the r-value is if you could fill it with something that would not freeze. Also, could it be used as a grow light? If you used green 2 liters, there would be no algae etc. I used them in my 2 liter hydroponics you tube videos, no algae.
@masterswag333: Mexicans? Are you talking about the people in this video? They're Brazilians. (That's not Spanish they're speaking in.) FYI, those PET bottles are meant for daytime use only, so they can cut their electric bill by at least half by using their regular electric bulbs at night. Makes sense. Not stupid at all.
@TachieBillano sorry for the mexican comment, it was unnesscessary, i think i was blazing wen i made this comment, lmao my bad, but yo... what do they do at night then? sun is only out during the day obviously
@masterswag333: They use regular electricity-powered bulbs when the sun goes down. And only for a few hours, until they go to sleep. That way, they don't have to "be on the grid" for long (like, 12 hours or more) and end up paying bigger electricity bills all the time.
@iamalakerfan1 yes it would light up but not as bright as on the sunny days, it could still refract some light in some way. Obviously it doesn't work at night, unless if we've got a moon that as bright as the sun.
Question: Why is the bottle a more effective refractor when filled with the water/bleach mixture? If the bleach is added to prevent formation of algae, why not simply leave the bottle empty?
@AnaLimaLuiza yes, it's amazing how uneducated some people are about the rest of the world... and it'd also amazing how many people make broad sweeping and judgmental generalizations about Americans when they haven't spent much time at all in America exploring the amazing diversity of it's people...
@MrRiuven Those things are pretty much identical, the only difference I noticed is that the MIT version that's deployed in Philippines has it's cap covered with some sticky crap so the sun doesn't destroy it over the years. Other than that, it's completely similar.
...And then he used a time machine to travel back a couple of years and promote the bottles as his own idea, on TV and even on youtube.com. years before the liter of light people!
@HChrisF Yes! And now he can pretend that this is the way he turned into the second most rich man in the world (of course Bill Gates will not lose for anybody)
The perfect alibi!
Now he will join the Illuminati and be part of the club. He will be attending the cremation ritual and will be filmed by Alex Jones that will focus only on his face.
As he was exposed and the mainstream media ruined his reputation he will come back to Brazil and live in the same house without light that was taken away.
@botbits Is that exactly their fault? You kinda make it sound like it is. do think if this guy had the chance to be the CEO of a big corporation he'd pass it up to keep doing what he's doing? I doubt it. It's like this in MANY countries. Hey, at least they found away to give themselves light. I never would have thought to do this. They work with what they've got and I commend them
@botbits well, we may be financially subordinate, but we still have resources left undiscovered, unused, but still present. we aren't as rich as you think you are. at least we're not big headed or spoiled neither. where you get your false sense of superiority amazes me. we're all people. no matter the economic status. instead of whining about how 'subordinate' 3rd world countries are, get up you butt and help.
@botbits No sweetheart. 3rd world is a denomination that is not used anymore. Google the reason.
This man lives in a poor city of Brazil but he only invented it because in 2002, it is at the video if you see it without the prejudice, the south of Brazil had to save light.
Don you have poor cities in America? Or rural areas? What about Detroit? Green Grass? Lagos...
Okay, here's an addition: paint the interior of these homes with phosphorescent paint to prolong the exposure to light. Paint the exterior of homes that border major streets if night lamps are non-existent. Remember how long the glow-in-the-dark toys emitted light? Find the optimum materials and cost then deploy.
@benknefelkamp Yeah but he did it to all the neighborhood for free. That's my point. And one other thing, necessity isn't the same as making money. He had no money and needed it, that's why he did it.
Actually, in my rich and affluent country (before the eurocrises that is) they sell this concept too. They are called 'lightdomes' made of stainless steel and cost about 200 euro's a piece. All they do is bring in daylight in dark rooms, just as these bottles do ;-)
I'd love to install a few of these bottles but I fear they would not survive the frost in winter
@schoorl200 Salt in the water (cheapest) A 50/50 mixture of water and rubbing alcohol (not quite as cheap) water and anti-freeze. (Don't know that would work. Here in the U.S., anti-freeze seems to all be dyed a bright green color.
You can still add a cone to reflect more light. A cone can be made with aluminium cans, or paper card + aluminium foil, or just bright (white or sliver) paper card. cheers
@bladder1010 so.. living in a tin hut means you're not living in a house? i cannot see the logic in that. a house is a house if it provides you security and protection.
This is one of the best videos I've seen on using solar water bottle lights. Where can I find written instructions in English or Spanish? I want to do a program for these at Lake Atitlan, Guatemala where I live part time. CatherineTodd2 at gmail dot com.
I see numerous comments about windows. Now one thing you all have to note with buildings is thermal input. The sun is a great ally but also a dreadful enemy. You have a window for light and HEAT to enter. Dark houses are cooler in the day compared to those that are brightly lit with windows. So the interior gets hotter. Some people solve it with curtains, blinds or worse air conditioning. This solution with the bottles provides the light without much thermal input.
@enticed2zeitgeist back before digital cameras, cameras used rolls of film. These rolls of film came in these little black plastic containers. This sort of film is still sold, you may be able to get free used ones from a film processing or camera shop.
Great way to recycle bottles--but and old idea!? Yes! Just look up Deck Prism on Wikipedia and you'll see that old-time ships have used this principle for centuries--check it out!
People who do not live in these countries are not aware of:
1) Homes are made of unreinforced adobe or cement or bricks & may be many years old. It’s difficult to add any windows.
2 ) Some homes r touching each other there no option for window there
4) Many roofs made of corrugated metal. (Metal in waves) This cannot support much weight. Metal also expands & contracts everyday with heat of the day & cold of the night. A skylight would have problems pretty quickly.
@AnaLimaLuiza Thanks for your comments. Thumbs up to ALL !
I absolutely agree with everything you said. I posted the above (actually It was me reposting someone else's comment)
because of the very same ignorant comments that you found. Thanks for fully clarifying and adding missing details !
...yes there certainly are lots of poor areas in the U.S. that could use this technology. (and if the "rich" would use this technology they could show some greater understanding of true living.
"IN 2002, DURING THE ENERGY CRISIS AND BLACKOUTS..." It says so, right in the beginning of the video. Why would people think this is a permanent solution? During this crisis, if you didn't reduce your electricity expenses in 20% you would pay a HUGE tax. Most of the time, we didn't have ANY electricity, specially in the poorest areas. This was not only clever, but a salvation for many workers and a comfort we could no longer afford.
What a not practical idea..why making hole in your roof?to put that cola botle? So how if the rain starts?expect that it drips. How about changing roof into polycarbonate roof?much cheaper practical and less risk!
@kazki026 : the roof doesn't leak because the bottle is caulked or you can use a square piece of roofing with a hole cut through it and the roof, insert the bottle, and caulk or rivet the square down on the roof. Works great.
Actually this is perfect for the type of roof they are using.
The large corrugations make it impossible to mount a standard skylight. The bottle mounted up in the hump like that means there is no substantial place for water to get trapped and leak in.
So leaks will be minimal and can be repaired easily.
At first I was skeptical of adding so many holes, but hey, this guy is an engineer and it shows in this great idea!
I get that this is cheaper than building a skylight, but it creates an awful lot of holes in the roof that are going to leak rain as soon as whatever kind of sealant he used dries out.
@u2bist You're right about the vulnerability of having so many holes in the roof, but if they do yearly maintenance before the rainy season they will be fine.
Skylights are also prone to leakage for the same reason you mentioned (sealant drying out)
...here's an idea: one could do a cluster of these in a square area where they plan to later put in a skylight. (say a 3x3=9 bottles where they would put a 2 foot square skylight) Electrical savings could help them save up for the skylight.
@derickyyy that's what i meant. How did i type that wrong??!! I think i was trying to say, "the cost to run 1 lightbulb was more than her salary???" i don't understand how electric can cost that much.
So, anyone who is saying this isn't effective because it needs sun, shut up. Some of our energy is dependent on solar panels, and they have the same "flaws".
Third world ideas being made to be something special. Looks extremely attractive. Should be a great topic for the global warming crowd. BTW it has to also produce heat; not a bad by product when you have dirt floors and you do not have AC.
Do you know how they are held in place? 2 litres of water is a respectable weight, and I would think something more than a topical cement would be needed to secure them.
using innovations is the trait of an intelligent person, when people develop new inventions that would benefit others are noble person, IDIOTIC STUPID AND IGNORANT Persons are those who mock the work of other because they are too DUMB enough to have think of it in the first place!
I was surprised in how many people posted negative remarks on this video.
"@americanson099 third world country stupid. they can not afford skylights with their wages. fuck sake!"
Maybe this person should try growing up in "third world country stupid". Since he cannot even type sensible English with his great intelligence, I am sure he would have trouble getting a job cleaning a pigsty. A person would have to know which end of a shovel to use.
@ipaddirvine In India 700 million people live on less than $3 per day. Practical solutions (particularly those that remove unnecessary plastic from the environment) are the only suggestions worth making.
@ipaddirvine I do not know if you have read the comments I have apologized to that person for my stupid comment, I was having a bad day. Yes sometimes my English does get tangled as it does when you know multiple languages also yes i have lived in a third world country. Sorry If I have offended you.
What people who do not live in these countries are not aware of:
1) Homes are made of unreinforced adobe or cement or bricks & may be many years old. It’s difficult to add any windows.
2 ) Some homes are touching each other there no option for window there
4) Many roof’s made of corrugated metal. (Metal in waves) This cannot support much weight. Metal also expands & contracts everyday with heat of the day & cold of the night. A skylight would have problems pretty quickly in these conditions.
@americanson099 look just want to apologize u are not stupid, i am stupid for answering in such a manner. yes skylights are a very good and the best option but u have to realize these people can not afford skylights. i know i have experienced it first hand. once again i am sorry.
The fact that the bottle doesn't light up during night isn't really a flaw because it only does what it's designed for. For the same reason a bicycle shouldn't be criticized for it not being able to run on water but only on solid surfaces.
@faro0485, you wrote: "Actually if you add some salt and a couple of electrodes in the bottle, you could run power off that water."
If this would work, and the energy stores, then the light could be turned on at night. How exactly do we try to do this? I'm going to see if we can do this in Guatemala where I live part time. CatherineTodd2 at gmail dot com.
@makelle In a sense, you're right; it only works during the day because it's only a daylight "bulb". It doesn't replace everything that light bulbs do, though it does reduce energy use by limiting electrical use during the day. Which helps level out electrical use somewhat; A/C during the day, electrical lighting during the night.
fdssg .. Cheers mate for letting me know :-)
aj236s 2 days ago
would a used vodka bottle do the job as it glass? pluse iv got shit loads hanging around the house now from the New Year party.. need to get rid!..
aj236s 3 weeks ago
@aj236s Any bottle will do. It's the water that's doing all the work.
fdssg 3 days ago
I wonder if antifreeze would work for this for the winter?
WCNYBC 1 month ago
brilliant
having those in my shed !!
crsbt 1 month ago
I know this is an old video but I keep coming back - genius !! ^_^
zeekle 1 month ago
Since holes need to be made on the ceiling to place the bottle in, would rainwater not seep through these holes? I mean no matter how well the bottles fit the holes, surely there must have been some space around these bottles to let water in? When the lady says that it does not leak, does she mean the bottle or the ceiling? Or both?
charizianne 1 month ago
@charizianne Silicon or any other special glue solve the problem.:)
nivaldodel 1 month ago
@charizianne You seal it around with waterproofing, naturally.
fdssg 3 days ago
hiya kuckt auf mich bin n hamster
CarleeLovecg315 2 months ago
My compliments to them. A great invention. I'll bet they put bleach in the bottles to prevent algae. I like tricks like that.
yahjnby 2 months ago
I'm very excited about this innovation, but want to know if it can work on an insulated (8" thick) roof, or only on a thin metal roof. Does the light refraction only work when most of the bottle is exposed?
Crunchy68 2 months ago
I really wish the title called the design a light pipe, instead of a bulb.
Putting 2 camera container fulls of bleach into a 2 litre bottle of water and exposing it to sunlight doesn't make it glow like a glow stick. Its reflects the sunlight, so it only works when the sun is out.
It doesn't replace any bulbs, it just eliminates their usage on sunny days where the roof is thin enough to install one of these.
Also, isn't that light meter measuring "lumins", not watts?
afivey 2 months ago
can you get sunburn from that bulb?
utubelang 2 months ago
ehm komme aus münchen
MarnieDarcelfb411 2 months ago
Those bottles obviously do not work in the dark, during the night for example. In fact they do not produce light al all.
Light comes from the sun and gets into the building through holes in the roof.
Plastic bottles are sealed into position to keep rain out.
Filling them with water has the effect of diffracting light in all directions and salt or ammonia is added to block algae growth. I would not recomment something like that for a temperate climate.
CollinaSilente 2 months ago
What happens when it's pitch black? Do they still work? ... I don't know - anyone fill me in ?
dickie5678 2 months ago
Save money on your energy bills.
Die of mesothelioma because you breathed in asbestos when you Cut the roof tiles.
It's a no brainer.
simonspaz 2 months ago
@AnaLimaLuiza I hope if I ever "search.. other countries" their citizens won't make baseless generalizations about me based on where I was born and raised.
@TubeNerd00 Money does motivate people to invent, but only a fool would argue it is the "only" motivation.
anonymous8261631 2 months ago
This has been flagged as spam show
hey! does this still work? howtoebooks helped me get an ipod for free
willetahwest 2 months ago
Platon: La necesidad es la madre de los inventos!!!!!!
palteonato 3 months ago
Dude it cant be used at night!
Lucmegamind 3 months ago
do these work at night as well or only during the day?
luedriver 3 months ago
@luedriver only day, they are not really lightbulbs. They just let the light in
Thrillseeker666 3 months ago
thank you coca cola xD
alvaroyr 3 months ago
i live in montana and im pretty sure i would need antifreeze if you know what i mean
gympvox 3 months ago
So there needs to be sunlight shining through the bottle to produce light?
zemphyre 3 months ago
I'm impressed - and I design solar powered lighting:-). Mine charges by day and provides light at night, but this nicely complements what I do. (Search BOGO light SunNight Solar) I wonder how my wife's going to react to the softdrink bottles in the ceiling? :-)
RussellMcMahon 3 months ago
the problem is... light is most used during the night.
ki6eki 3 months ago
@ki6eki Unless you go to sleep early and wake up when light comes back...
leeyoda327 3 months ago
@ki6eki No, light is most used during the day when people are awake. SUPPLEMENTAL light is most used during the night, for those few hours we're not asleep yet. But these skylights solve the problem of folks who are awake during the day but still suffering from darkness. It doesn't pretend to replace the need for other lights at night.
Crunchy68 2 months ago 8
I'm not sure I get this. If you hang water bottles off your ceiling, then rain can come i the holes, right?
vinegaroon1 3 months ago
@vinegaroon1 They just use a commercial sealant or maybe chaulking
smdhptr 3 months ago
@vinegaroon1 the guy in the video asked the woman about that. she said there were no leaks. so they probably sealed in the gaps.
121awsalba 3 months ago
I wonder what the r-value is if you could fill it with something that would not freeze. Also, could it be used as a grow light? If you used green 2 liters, there would be no algae etc. I used them in my 2 liter hydroponics you tube videos, no algae.
mediamaker2000 3 months ago
How do you turn off the light?
Answer: Just close your eyes.
bluegap81 3 months ago
Stupid mexicans what the fuck do they do at night?
masterswag333 3 months ago
@masterswag333: Mexicans? Are you talking about the people in this video? They're Brazilians. (That's not Spanish they're speaking in.) FYI, those PET bottles are meant for daytime use only, so they can cut their electric bill by at least half by using their regular electric bulbs at night. Makes sense. Not stupid at all.
TachieBillano 3 months ago
@TachieBillano sorry for the mexican comment, it was unnesscessary, i think i was blazing wen i made this comment, lmao my bad, but yo... what do they do at night then? sun is only out during the day obviously
masterswag333 3 months ago
@masterswag333: They use regular electricity-powered bulbs when the sun goes down. And only for a few hours, until they go to sleep. That way, they don't have to "be on the grid" for long (like, 12 hours or more) and end up paying bigger electricity bills all the time.
TachieBillano 3 months ago
@masterswag333 "Sun is only out during the day" ?? !!
Man, so that's why I keep bumping into things when I go out at night. Thanks Dude!
nostradamuszen 2 months ago
can anyone tell me...how about if there is no sunlight??i mean its a cloudy sky or rainy season???does it work??please tell me thanks....
iamalakerfan1 3 months ago
@iamalakerfan1 yes it would light up but not as bright as on the sunny days, it could still refract some light in some way. Obviously it doesn't work at night, unless if we've got a moon that as bright as the sun.
ItlogNaEgg 3 months ago
I'm not sure what the film containers are for, why not just use a lid?
Reaver1776 4 months ago in playlist More videos from KAWUNEARTH
@Reaver1776 sure, if you don't mind attracting some perverts on to your roof.
ItlogNaEgg 3 months ago
@AdlerMow Thanks : )
Del350K4 4 months ago
this was used in the Philippines
lolHateTrolls 4 months ago
how do you turn off the lights
radioshuriken 4 months ago
Question: Why is the bottle a more effective refractor when filled with the water/bleach mixture? If the bleach is added to prevent formation of algae, why not simply leave the bottle empty?
Del350K4 4 months ago
@Del350K4 Water is more effective a refractor than plain air. And you don't need these film containers, plastic cement will do just as well!
AdlerMow 4 months ago
Some Americans should try to search about other countries. It is amazing how uneducated some Americans are about the rest of the world.
AnaLimaLuiza 4 months ago 28
@AnaLimaLuiza yes, it's amazing how uneducated some people are about the rest of the world... and it'd also amazing how many people make broad sweeping and judgmental generalizations about Americans when they haven't spent much time at all in America exploring the amazing diversity of it's people...
greg0rz861 1 month ago
This is in Brazil. Mr Alfredo is explaining without having any idea where he is now.
And there are people to doubt he invented.
You have no idea how poor people are creative. He is an electrician.
AnaLimaLuiza 4 months ago
This has been flagged as spam show
but if you paint the bottle with flourescent colour you got even night lighthing!
ZEINSTAIN2011 4 months ago
but if you pant the bottle with flourescent colour you got even night lighthing!
ZEINSTAIN2011 4 months ago
Weird, this Brazilian guy says he invented it, while the A Liter of Light claims it was invented by MIT students.
clerlic 4 months ago
@clerlic
It could have easily been both people.
MrRiuven 4 months ago
@MrRiuven Those things are pretty much identical, the only difference I noticed is that the MIT version that's deployed in Philippines has it's cap covered with some sticky crap so the sun doesn't destroy it over the years. Other than that, it's completely similar.
clerlic 4 months ago
@clerlic Maybe Mr Alfredo went to Massachusetts to take some classes at MIT.
AnaLimaLuiza 4 months ago
@AnaLimaLuiza
...And then he used a time machine to travel back a couple of years and promote the bottles as his own idea, on TV and even on youtube.com. years before the liter of light people!
HChrisF 3 months ago
@HChrisF Yes! And now he can pretend that this is the way he turned into the second most rich man in the world (of course Bill Gates will not lose for anybody)
The perfect alibi!
Now he will join the Illuminati and be part of the club. He will be attending the cremation ritual and will be filmed by Alex Jones that will focus only on his face.
As he was exposed and the mainstream media ruined his reputation he will come back to Brazil and live in the same house without light that was taken away.
AnaLimaLuiza 3 months ago
works at night?
churchtape 4 months ago
And there was light...
Human 1 God 0
erzan 4 months ago
this just proves how far behind the 3rd world is when it comes to resources.. just look at the way they live, how subordinate!
botbits 4 months ago
@botbits Is that exactly their fault? You kinda make it sound like it is. do think if this guy had the chance to be the CEO of a big corporation he'd pass it up to keep doing what he's doing? I doubt it. It's like this in MANY countries. Hey, at least they found away to give themselves light. I never would have thought to do this. They work with what they've got and I commend them
cartergirl3of3 4 months ago
@botbits well, we may be financially subordinate, but we still have resources left undiscovered, unused, but still present. we aren't as rich as you think you are. at least we're not big headed or spoiled neither. where you get your false sense of superiority amazes me. we're all people. no matter the economic status. instead of whining about how 'subordinate' 3rd world countries are, get up you butt and help.
SnowEmoAngel 4 months ago
@botbits youre a piece of shit.
Rearsiekk 4 months ago
@botbits No sweetheart. 3rd world is a denomination that is not used anymore. Google the reason.
This man lives in a poor city of Brazil but he only invented it because in 2002, it is at the video if you see it without the prejudice, the south of Brazil had to save light.
Don you have poor cities in America? Or rural areas? What about Detroit? Green Grass? Lagos...
AnaLimaLuiza 4 months ago
@botbits 1) 3rd forget 3rd world because the the bipolar world is over
2) This is a poor city in Brazil
3) don't you have poor cities in America? What about Detroit, Lagos...
AnaLimaLuiza 4 months ago
@botbits fuck you.
121awsalba 3 months ago
Okay, here's an addition: paint the interior of these homes with phosphorescent paint to prolong the exposure to light. Paint the exterior of homes that border major streets if night lamps are non-existent. Remember how long the glow-in-the-dark toys emitted light? Find the optimum materials and cost then deploy.
Ou8y2k2 4 months ago
They say money motivates people to invent, that's just bullshit, the man who invented this wasn't doing it for money.
TubeNerd00 4 months ago 11
@TubeNerd00
In essence, he was doing it to prevent spending money, which is the same as making money.
benknefelkamp 2 months ago
@benknefelkamp Yeah but he did it to all the neighborhood for free. That's my point. And one other thing, necessity isn't the same as making money. He had no money and needed it, that's why he did it.
TubeNerd00 2 months ago
This should be tested up in the north. Put one or two of these to a outdoor bathroom that many summer cottages have and see if survives winter.
Welshu 4 months ago
Actually, in my rich and affluent country (before the eurocrises that is) they sell this concept too. They are called 'lightdomes' made of stainless steel and cost about 200 euro's a piece. All they do is bring in daylight in dark rooms, just as these bottles do ;-)
I'd love to install a few of these bottles but I fear they would not survive the frost in winter
schoorl200 4 months ago
@schoorl200 Salt in the water (cheapest) A 50/50 mixture of water and rubbing alcohol (not quite as cheap) water and anti-freeze. (Don't know that would work. Here in the U.S., anti-freeze seems to all be dyed a bright green color.
tuckerch 3 months ago
@tuckerch smart!! Did not think of that. Thanks
schoorl200 3 months ago
@schoorl200 You're welcome! Happy to have been of service.
tuckerch 3 months ago
Great idea to save money and conserve resources. I like it!
RJ71s 4 months ago
It doesn't help that her fuckin bathroom is dark green. Paint yo shit lighter colours..
jaysatanfox 4 months ago
@jaysatanfox I'm sure you'll give us a full report after you get back from painting her bathroom for her, right?
RIGHT?
tuckerch 3 months ago
doesn't it make the roof leak??
1antiracist 4 months ago
@1antiracist no you use sealant.
1111Davo1 4 months ago
Excelente idea, muy buena opción para hogares de bajos recursos.
estrategistaweb 4 months ago
You can still add a cone to reflect more light. A cone can be made with aluminium cans, or paper card + aluminium foil, or just bright (white or sliver) paper card. cheers
tolimoli 5 months ago
That's great if you happen to live in a tin hut, like the people in this video. Me? I live in a house.
bladder1010 5 months ago
@bladder1010 smh at you. 'nuff said.
joonipuur 4 months ago
@bladder1010 so.. living in a tin hut means you're not living in a house? i cannot see the logic in that. a house is a house if it provides you security and protection.
SnowEmoAngel 4 months ago
@SnowEmoAngel A vicious rottweiler also provides me with security and protection -- but he's not really much of a house now, either, is he?
bladder1010 4 months ago
disadvantage... it doesnt work at night
OrderOfGamers 5 months ago
@OrderOfGamers he made it to be turned off at midnight.
AnaLimaLuiza 4 months ago
This is one of the best videos I've seen on using solar water bottle lights. Where can I find written instructions in English or Spanish? I want to do a program for these at Lake Atitlan, Guatemala where I live part time. CatherineTodd2 at gmail dot com.
CommentsSurvey 5 months ago
Love this.
Sally0h 5 months ago
Nuka Cola! :D
BlitzKickerNL 5 months ago 2
I see numerous comments about windows. Now one thing you all have to note with buildings is thermal input. The sun is a great ally but also a dreadful enemy. You have a window for light and HEAT to enter. Dark houses are cooler in the day compared to those that are brightly lit with windows. So the interior gets hotter. Some people solve it with curtains, blinds or worse air conditioning. This solution with the bottles provides the light without much thermal input.
genie47 6 months ago 3
So I can only do this if I have a shitty tin roof? =\
xXTEDXx 6 months ago
@xXTEDXx It's good for about 1,5 million people living in slums though. You can get yourself a nice sun pipe for your über roof.
sansewai 5 months ago
@xXTEDXx watch?v=q044xg8qMNY good video demonstrating Solar Tubes for rich people houses.
dragonbeary 4 months ago
very cool
manoman0 6 months ago
What film thinger are they referring too that is attached to the opening of the bottle. Seems pretty cool.
enticed2zeitgeist 6 months ago
@enticed2zeitgeist back before digital cameras, cameras used rolls of film. These rolls of film came in these little black plastic containers. This sort of film is still sold, you may be able to get free used ones from a film processing or camera shop.
breegamm 6 months ago 6
@enticed2zeitgeist film dispenser for older non digital cameras
mrxtreme2 5 months ago
27 votes from electric company PR workers :)
banciur 6 months ago
THATS A BRAZILIAN VIDEO!!!!!!!
ridergui1234 6 months ago 2
How does it stay put in the roof? Bottle will expand during the day and "shrink" at night - what is the moisture barrier used to affix these bottles?
rushin2 6 months ago
Great way to recycle bottles--but and old idea!? Yes! Just look up Deck Prism on Wikipedia and you'll see that old-time ships have used this principle for centuries--check it out!
videoeyer 6 months ago 2
@videoeyer : going to "Deck Prism" on Wikipedia now. Thanks for the tip!
CommentsSurvey 5 months ago
People who do not live in these countries are not aware of:
1) Homes are made of unreinforced adobe or cement or bricks & may be many years old. It’s difficult to add any windows.
2 ) Some homes r touching each other there no option for window there
4) Many roofs made of corrugated metal. (Metal in waves) This cannot support much weight. Metal also expands & contracts everyday with heat of the day & cold of the night. A skylight would have problems pretty quickly.
ipaddirvine 3 months ago
woodsprout 6 months ago 48
@woodsprout wads with the "ipaddirvine 3 months ago" ? copy paste? lol
matisseford 4 months ago
@matisseford Yes, ipaddirvine's info was worth reposting and I gave him credit. If only it were money, eh?
woodsprout 4 months ago
@woodsprout "These countries" has a name: Brazil. And this is in Uberaba, interior of São Paulo,
not the capital.
It was during the blackout that happened that year when we had to save light.
But I have to remind you that Brazil is not all like this.
These are the poor people but we have cities that have... buildings! Can you imagine that?
I have read... James Joyce. Can you believe that? One American once said to me: continue...
AnaLimaLuiza 4 months ago
@AnaLimaLuiza "I'm amazed that you're Brazilian and know James Joyce."
Say what?
Well, I told him I also liked Lawrence Sterne, he didn't know Lawrence Sterne and many other British and Irish writers.
Please, inform yourself about countries you still call "third world" although the cold war is over.
We also have scientists. Isn't is amazing? And some of them doesn't work for the corporations while 99% of Americans do.
AnaLimaLuiza 4 months ago
@AnaLimaLuiza Thanks for your comments. Thumbs up to ALL !
I absolutely agree with everything you said. I posted the above (actually It was me reposting someone else's comment)
because of the very same ignorant comments that you found. Thanks for fully clarifying and adding missing details !
...yes there certainly are lots of poor areas in the U.S. that could use this technology. (and if the "rich" would use this technology they could show some greater understanding of true living.
woodsprout 4 months ago
This has been flagged as spam show
5) usually there is very little police in these areas, so crime fairly common. A skylight or windows provides easy access to the home or business.
6) people in other countries like this do not make much wages. Many people may make less than 20$ a day.
This solution gives an option taking into account the other needs in the location.
ipaddirvine 3 months ago
woodsprout 6 months ago 2
This has been flagged as spam show
"IN 2002, DURING THE ENERGY CRISIS AND BLACKOUTS..." It says so, right in the beginning of the video. Why would people think this is a permanent solution? During this crisis, if you didn't reduce your electricity expenses in 20% you would pay a HUGE tax. Most of the time, we didn't have ANY electricity, specially in the poorest areas. This was not only clever, but a salvation for many workers and a comfort we could no longer afford.
balanblonde2 3 months ago
woodsprout 6 months ago
What a not practical idea..why making hole in your roof?to put that cola botle? So how if the rain starts?expect that it drips. How about changing roof into polycarbonate roof?much cheaper practical and less risk!
kazki026 6 months ago
@kazki026 : the roof doesn't leak because the bottle is caulked or you can use a square piece of roofing with a hole cut through it and the roof, insert the bottle, and caulk or rivet the square down on the roof. Works great.
CommentsSurvey 5 months ago 2
DIY skylight! It's genius compared to a 500+ commercial one! I guess the biggest expense is to make that hole in the roof.
amazingdany 6 months ago
does it work at night? we dont really need light in the day time, because we got windows :D , but still, best light bulb i have ever seen!!!!:D
KeyChow 6 months ago
ASBESTOS ROOF!
zpunout 7 months ago
@zpunout Yeah I noticed that. Canada #1 exporter.
These people must be warned!!!
13triki 6 months ago
Actually this is perfect for the type of roof they are using.
The large corrugations make it impossible to mount a standard skylight. The bottle mounted up in the hump like that means there is no substantial place for water to get trapped and leak in.
So leaks will be minimal and can be repaired easily.
At first I was skeptical of adding so many holes, but hey, this guy is an engineer and it shows in this great idea!
woodsprout 7 months ago 3
Brilliant.
srsh12345 7 months ago
I get that this is cheaper than building a skylight, but it creates an awful lot of holes in the roof that are going to leak rain as soon as whatever kind of sealant he used dries out.
u2bist 7 months ago
@u2bist You're right about the vulnerability of having so many holes in the roof, but if they do yearly maintenance before the rainy season they will be fine.
Skylights are also prone to leakage for the same reason you mentioned (sealant drying out)
...here's an idea: one could do a cluster of these in a square area where they plan to later put in a skylight. (say a 3x3=9 bottles where they would put a 2 foot square skylight) Electrical savings could help them save up for the skylight.
woodsprout 7 months ago 2
cool
poodedpo 7 months ago
so i light bulb costs more than her salary ??????
japierce15 7 months ago
@japierce15 no, they said her electrical bill cost more than her salary. not one light bulb lol
derickyyy 7 months ago
@derickyyy that's what i meant. How did i type that wrong??!! I think i was trying to say, "the cost to run 1 lightbulb was more than her salary???" i don't understand how electric can cost that much.
japierce15 7 months ago
thats good for in the day, most people sleep during the night.
ZOMGWTFALLNAMESTAKEN 8 months ago
Very cool!!
bjcpc0337 8 months ago
how much bleach is in a cap full?
JSW588 8 months ago
@JSW588 take the cap off of the bottle and fill it with bleach,,, thats a cap full,,,,,duh
tonymengela 8 months ago
Places of BUSINESS open during the DAY and don't have WINDOWS need LIGHT to work. How difficult a concept is that for people to understand?
MarxPennsWrite 8 months ago
Light is not just needed at night, but inside any enclosed building one wants to work in.
And one sleeps most of the night anyway.
It is not a total solution but part of the puzzle, and a most valuable one.
AOZXRAY 8 months ago
So, anyone who is saying this isn't effective because it needs sun, shut up. Some of our energy is dependent on solar panels, and they have the same "flaws".
hubercc1 8 months ago
Third world ideas being made to be something special. Looks extremely attractive. Should be a great topic for the global warming crowd. BTW it has to also produce heat; not a bad by product when you have dirt floors and you do not have AC.
rpeagram 8 months ago
Skylights are not a new thing, but this method is cheap, quick and easy to make yourself.
Kainlarsen 8 months ago
thats just cheating <.<
Pardio3 8 months ago
Great idea!
GulfWatch 9 months ago
what is the ingredient of this project?
RickAdamOts 9 months ago
wow
07kriztian 9 months ago
perfect
ponsho333 9 months ago
One more reason why engineers rule the world :P
crichton55 9 months ago 3
This is actually a great idea. This would work in lots of workshops, garages or tool sheds.
Cee64E 9 months ago
Do you know how they are held in place? 2 litres of water is a respectable weight, and I would think something more than a topical cement would be needed to secure them.
Haakonw123 9 months ago
A bit dangerous to saw in those asbestos containing roofplates. . .
Ineke210000 9 months ago
this is amazing!!!!!!!!!!!!!!
kim6dubz6dem6truth86 9 months ago
awesome!
khiwarrior 9 months ago
using innovations is the trait of an intelligent person, when people develop new inventions that would benefit others are noble person, IDIOTIC STUPID AND IGNORANT Persons are those who mock the work of other because they are too DUMB enough to have think of it in the first place!
crossworlds2001 9 months ago
What's next? Water pipes? Fire? The wheel?
schenkel123 9 months ago
I was surprised in how many people posted negative remarks on this video.
"@americanson099 third world country stupid. they can not afford skylights with their wages. fuck sake!"
Maybe this person should try growing up in "third world country stupid". Since he cannot even type sensible English with his great intelligence, I am sure he would have trouble getting a job cleaning a pigsty. A person would have to know which end of a shovel to use.
ipaddirvine 9 months ago
@ipaddirvine In India 700 million people live on less than $3 per day. Practical solutions (particularly those that remove unnecessary plastic from the environment) are the only suggestions worth making.
thaliathefashionnerd 9 months ago 4
@ipaddirvine I do not know if you have read the comments I have apologized to that person for my stupid comment, I was having a bad day. Yes sometimes my English does get tangled as it does when you know multiple languages also yes i have lived in a third world country. Sorry If I have offended you.
antonioscheel 9 months ago
5) usually there is very little police in these areas, so crime fairly common. A skylight or windows provides easy access to the home or business.
6) people in other countries like this do not make much wages. Many people may make less than 20$ a day.
This solution gives an option taking into account the other needs in the location.
ipaddirvine 9 months ago
What people who do not live in these countries are not aware of:
1) Homes are made of unreinforced adobe or cement or bricks & may be many years old. It’s difficult to add any windows.
2 ) Some homes are touching each other there no option for window there
4) Many roof’s made of corrugated metal. (Metal in waves) This cannot support much weight. Metal also expands & contracts everyday with heat of the day & cold of the night. A skylight would have problems pretty quickly in these conditions.
ipaddirvine 9 months ago
anti-ntp
IppoG4 9 months ago
At night you dont need lights...You need a glass of wine and good friends...
PEROUKIS 9 months ago 2
Interesting, but since it needs the sun, a bright sun, a skylight would let in much more light and be less maint. once installed.
americanson099 9 months ago
Comment removed
antonioscheel 9 months ago
@antonioscheel And why does that make you angry?
JuliusGratekul 9 months ago
@americanson099 look just want to apologize u are not stupid, i am stupid for answering in such a manner. yes skylights are a very good and the best option but u have to realize these people can not afford skylights. i know i have experienced it first hand. once again i am sorry.
antonioscheel 9 months ago
The fact that the bottle doesn't light up during night isn't really a flaw because it only does what it's designed for. For the same reason a bicycle shouldn't be criticized for it not being able to run on water but only on solid surfaces.
makelle 9 months ago 81
@makelle but the light is not a bicycle. light is need at night and bicycle is not needed on water lol.
juan8luna 8 months ago
@makelle Actually if you add some salt and a couple of electrodes in the bottle, you could run power off that water.
faro0485 7 months ago
This has been flagged as spam show
@faro0485, you wrote: "Actually if you add some salt and a couple of electrodes in the bottle, you could run power off that water."
If this would work, and the energy stores, then the light could be turned on at night. How exactly do we try to do this? I'm going to see if we can do this in Guatemala where I live part time. CatherineTodd2 at gmail dot com.
CommentsSurvey 5 months ago
This has been flagged as spam show
@makelle Actually if you add some salt and a couple of electrodes in the bottle, you could run power off the HHO gas that is produced.
faro0485 7 months ago
@makelle i totaly agree because u dont need a light if it is daytime!
Burnsie8282 7 months ago
@Burnsie8282 This is why this is used in underground applications where windows are obsolete. Im looking at doing this for underground building
591471 6 months ago
@makelle In a sense, you're right; it only works during the day because it's only a daylight "bulb". It doesn't replace everything that light bulbs do, though it does reduce energy use by limiting electrical use during the day. Which helps level out electrical use somewhat; A/C during the day, electrical lighting during the night.
Stevarooni 4 months ago
At night, you turn on the regular lights. That was hard(sarcasm).
Famousagentman 9 months ago
ummm so what about at nighttime?
Melancholy43920 9 months ago
Awesome! :D
flygplanet 9 months ago
This is useful even in the USA. Things like sheds can be inconvenient to wire up with lighting.
vw77 10 months ago 2
Necessity: the mother of invention at its finest! I wanna try this experiment!
MrNemitri 10 months ago
That's really great.
Too bad, it's not working well in Britian because the weather is changing a lot... Sunny... Cloudy... Sunny... Rainy... etc.
It's best for some countries where the chances of sunny is high.
gamefreak10 10 months ago